GeoLibre

GeoLens is a self-hosted geospatial data catalog for collecting, indexing, previewing, and sharing GIS datasets on infrastructure controlled by one organization. It ingests uploaded and created datasets, database tables, service snapshots, and remote STAC assets, including Shapefile, GeoPackage, GeoJSON, GeoParquet, FlatGeobuf, KML/KMZ, CSV, XLSX, GeoTIFF, Cloud-Optimized GeoTIFF, and VRT raster mosaics. The catalog records dataset provenance and source state, supports pg_trgm fuzzy search and optional pgvector semantic ranking, and provides spatial analysis operations such as buffer, centroid, clip, dissolve, spatial join, and intersection. Its browser-based map builder composes and styles multi-layer maps and publishes them through links or embeddable iframes. GeoLens exposes OGC API Features and Records, STAC API 1.0, JSON-LD catalog formats, direct tile URLs, and vector tiles for use with QGIS, ArcGIS, MapLibre, and other OGC clients. The stack uses a React and MapLibre frontend, a FastAPI API, a GDAL/ogr2ogr ingestion worker, Titiler for raster tiles, PostgreSQL with PostGIS, pgvector, and pg_trgm, plus object storage and Valkey caching. The project is deployed with Docker Compose or prebuilt container images and also publishes Python, TypeScript/JavaScript, CLI, and read-only MCP packages. Optional AI features use an OpenAI-compatible endpoint or Anthropic key for natural-language dataset and map interactions. GeoLens is licensed under Apache License 2.0; its own REST API may change between minor releases, while its OGC and STAC standards surfaces are intended for client integration.

PostGIS is an extension for PostgreSQL that adds storage, indexing, and querying of geospatial data. It supports spatial data such as points, lines, polygons, multi-geometries, and raster data in 2D and 3D, with spatial indexes for location-based retrieval and functions for measuring distances and areas, intersecting and buffering geometries, geocoding and reverse geocoding, and processing or converting geometries. It can be used with tools including QGIS, GeoServer, MapServer, ArcGIS, and Tableau.

GeoLook is an open-source, self-hosted platform for end-to-end Generative Engine Optimization (GEO), focused on whether AI engines mention and cite a brand. Its workflow runs from status analysis through diagnosis, strategy, implementation tickets, execution, and verification. The platform samples answers from multiple AI engines and measures mention rate, rank, citation share, competitor visibility, and citation sources. It classifies question-level problems such as absence, low ranking, competitor dominance, and suspected negative mentions; stores browsable sample metadata; and allows human corrections to parser results that recompute metrics and persist across resampling. It can expand question banks using Baidu suggestions and Google autocomplete, with candidates requiring manual review. GeoLook audits sites through an Access → Orientation → Understanding → Quotability dependency chain, covering crawler access, extraction blocks, citation-channel gaps, and brand-fact or messaging inconsistencies. It also performs checks such as robots and WAF/CDN behavior, noindex headers, llms.txt links, hreflang, sitemaps, duplicate content, and passage-level quotability. The action stage produces structured implementation tickets with rationale, ownership, effort, timing, acceptance criteria, risk grades, progress tracking, and regression-based reopening; it also provides content planning, deployable llms.txt and JSON-LD assets, and client-facing reports and execution plans. Subsequent sampling rounds compare results before and after implementation.

LibreChat is an open-source, self-hosted AI chat platform that provides a ChatGPT-inspired interface for connecting to major AI providers and custom OpenAI-compatible endpoints. It supports model switching, multimodal file interactions, web search, speech-to-text and text-to-speech, image generation, conversation search, presets, branching, resumable streams, and a sandboxed Code Interpreter for languages including Python, JavaScript/TypeScript, Go, C/C++, Java, PHP, Rust, and Fortran. Its agent system supports no-code custom assistants, community-shared agents, MCP servers, tools, file search, code execution, reusable SKILL.md instruction bundles, subagents, and an Agent Management API. Agents can optionally use attached workspaces to inspect, search, edit, and run commands in bounded environments. The platform also provides generative UI artifacts, including React, HTML, and Mermaid content, plus custom actions and integrations with providers such as Anthropic, AWS Bedrock, OpenAI, Azure OpenAI, Google, Vertex AI, Ollama, Groq, Mistral, OpenRouter, and others. LibreChat includes multi-user authentication through OAuth2, LDAP, and email login; browser-based administration of users, groups, roles, and configuration; role-based permissions; observability through OpenTelemetry and Langfuse; Redis-backed synchronization for scaled deployments; and Docker Compose deployment options. It is built in public and intended for local or cloud self-hosting.

Google Earth is a geospatial visualization application developed by Google that provides an interactive 3D globe with satellite imagery, maps, terrain, 3D buildings, Street View, and historical imagery. It is available as a web application, a desktop client (Google Earth Pro), and mobile apps.